If you are a one person operation you will have a hard time making significant money.
Rather, have employees that you can pay, for example, $15 per hour and charge the customers $50/hour if using your own equipment.
You spend your time running the business, getting customers, paying the bills, getting contracts, lining up equipment to rent, repair, or buy.
Landscapers here cut grass, trim trees, clean rain gutters, plow snow, as well as planting trees and making gardens.
Sadly, the key to profitability is paying your employees much less than what you charge for their time.